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Home >> Scion >> 2014 >> FR-S Standard Trans >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes & Symptom Tests) >> Airbag System >> DTC B1820: Short in Side Squib (RH) Circuit; DTC B1821: Open in Side Squib (RH) Circuit; DTC B1822: Short in Side Squib (RH) Circuit (to Ground); DTC B1823: Short in Side Squib (RH) Circuit (to +B) >> Description

DTC B1820: Short in Side Squib (RH) Circuit; DTC B1821: Open in Side Squib (RH) Circuit; DTC B1822: Short in Side Squib (RH) Circuit (to Ground); DTC B1823: Short in Side Squib (RH) Circuit (to +B): Description

The front side squib RH circuit consists of the airbag ECU assembly and front seat airbag assembly RH.

The airbag ECU assembly uses this circuit to deploy the airbag when deployment conditions are met.

These DTCs are stored when a malfunction is detected in the front side squib RH circuit.

DTC No. DTC Detection Condition Trouble Area
B1820
  • The airbag ECU assembly receives a line short circuit signal in the front side squib RH circuit during primary check.
  • Front side squib RH malfunction
  • Airbag ECU assembly malfunction
  • No. 2 floor wire
  • Front seat assembly RH (Front seat wire RH)
  • Front seat airbag assembly RH (Front side squib RH)
  • Airbag ECU assembly
B1821
  • The airbag ECU assembly receives an open circuit signal in the front side squib RH circuit.
  • Front side squib RH malfunction
  • Airbag ECU assembly malfunction
B1822
  • The airbag ECU assembly receives a short circuit to ground signal in the front side squib RH circuit.
  • Front side squib RH malfunction
  • Airbag ECU assembly malfunction
B1823
  • The airbag ECU assembly receives a short circuit to B+ signal in the front side squib RH circuit.
  • Front side squib RH malfunction
  • Airbag ECU assembly malfunction
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